SOLUTION: Determine which two equations represent perpendicular lines.
(a) y = 4x – 7
(b) y = x + 7
(c) y = – x + 7
(d) y = x – 7
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Question 117234: Determine which two equations represent perpendicular lines.
(a) y = 4x – 7
(b) y = x + 7
(c) y = – x + 7
(d) y = x – 7
Found 2 solutions by stanbon, checkley71:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Determine which two equations represent perpendicular lines.
(a) y = 4x – 7
slope is 4
------------
(b) y = x + 7
slope is 1
-------------
(c) y = – x + 7
slope is -1
--------------
(d) y = x – 7
slope is 1
-------------------
c and d are perpendicular
c and b are perpendicular
=============================
Cheers,
Stan H.
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
YOU HAVE 2 SETS OF PERPENDICULAR LINES
B & C ARE PERPENDICULAR
C & D ARE PERPENDICULAR
BECAUSE THEY ACH HAVE SLOPES (m)THAT ARE NEGATIVE RECIPRICALS OF EACH OTHER:
1 & -1
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